Here is the full list of all 17 Sigi - there are A Fart for Melusina achievements.
In under 30 minutes?
Clear all caves.
Collect all SIGI's.
Hard to find and almost out of reach.
Find the long lost golden talisman.
Pocket 2500 coins.
Find the long lost golden grail.
There she goes again.
Defeat Ivan Stinkup.
Find the long lost golden crown.
An apple a day...
Defeat Kolles Terrol.
Collect 1000 coins.
Defeat the Steel Horse.
Kill 100 Zombies.
Defeat Blind John
Fart at Melusina.